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JEE Main & Advanced Physics Wave Mechanics Question Bank Basics of Mechanical Waves

  • question_answer
    The speed of a wave in a medium is 760 m/s. If 3600 waves are passing through a point, in the medium in 2 minutes, then its wavelength is                             [AFMC 1998; CPMT 2001]

    A)            13.8 m                                     

    B)            25.3 m

    C)            41.5 m                                     

    D)            57.2 m

    Correct Answer: B

    Solution :

               Frequency of wave is \[n=\frac{3600}{2\times 60}\,Hz\]Þ\[\lambda =\frac{v}{n}=\frac{760}{30}=25.3\]m.


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